sreenivasan: find some of the questions ray posed about facebook on our facebook page, watch more of stephen colbert's testimony about the plight of farm workers. plus on "art beat," jeff talks to norwegian novelist per petterson about his book, "i curse the river of time". all that and more is on our web site, newshour.pbs.org. judy. >> woodruff: and that's the newshour for tonight. on monday, we'll talk to former clinton economic advisor laura tyson, who makes the case for extending bush-era tax cuts to the middle class, but not to the very wealthy. i'm judy woodruff. >> brown: and i'm jeffrey brown. "washington week" can be seen later this evening on most pbs stations. we'll see you online, and again here monday evening. have a nice weekend. thank you and good night. major funding for the pbs newshour has been provided by: and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. captioning sponsored by macneil/lehrer produc